C#CreateDirectory表现奇怪-不创建目录 [英] C# CreateDirectory behaving strange - Not creating directory

问题描述

我正在删除目录(如果存在)，然后重新创建该目录.

I am deleting a directory if it exists, and re-creating that directory.

我的代码是这样的:

                if (Directory.Exists(destFolder))
                {
                    Directory.Delete(destFolder, true);
                    DirectoryInfo dirInfo = Directory.CreateDirectory(destFolder);
                }
                else
                {
                    Directory.CreateDirectory(destFolder);
                }

我面临的问题是:如果该目录已包含文件并且该目录当前已在Windows资源管理器窗口之一中打开(即使在任何应用程序中均未打开文件)，则:

The problem I am facing is: if the directory already contains files AND that directory is currently open in one of the Windows explorer windows (even though no file is open in any application), then:

1. Directory.Delete删除目录，资源管理器窗口自动导航到父文件夹.
2. CreateDirectory不会引发任何错误，但它返回的DirectoryInfo包含Exists为false.

由于此，稍后在我的程序中尝试在该目录中创建文件时，出现错误:找不到路径的一部分"

Due to this, later in my program when I am trying to create files in that directory, I get the error: "Could not find a part of the path"

为什么会这样?解决方法是什么?

Why is this behaviour and what is the solution?

谢谢.

有时DirectoryInfo.Exists返回true，但是目录实际上在Explorer中不存在！

EDIT 1: Sometimes DirectoryInfo.Exists returns true, but the directory does not actually exist in Explorer!

推荐答案

由于您要求的解决方案类似于不使用Thread.Sleep的vivek nuna:

Since you asked for a solution akin to vivek nuna's that doesn't use Thread.Sleep:

您还可以使用FileSystemWatcher来监视目录的删除.通常情况下，这应该比Thread.Sleep快.

You could also use a FileSystemWatcher to watch for the deletion of the directory. This should in the normal case be faster than a Thread.Sleep.

但是，如果您采用这种方式，还请设置一个计时器，并检查目录是否消失而不被告知.当托管驱动器的系统不支持通知时，FileSystemWatcher静默失败.

However, if you take this route also set a timer and check if the directory vanished without you being told. FileSystemWatcher fails silently when the system hosting the drive does not support the notifications.

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